Muscles
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Created by:
flessaspw02 on November 26, 2010
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28 terms
Terms | Definitions |
|---|---|
 superficial fascia over pectoralis major and deltoid muscles | Origin of Platysma |
| lower border of mandible, angle of mouth | Insertion of Platysma |
| facial nerve | Innervation of Platysma |
| depresses mandible, draws down corner of mouth | Action of Platysma |
| sternal head from front of manubrium, clavicular head from medial third of clavicle | Origin of Sternocleidomastoid |
| lateral surface of mastoid process, lateral half of superior nuchal line | Insertion of Sternocleidomastoid |
| accessory nerve | Innervation of Sternocleidomastoid |
| chief flexor of head | Action of Sternocleidomastoid |
| external occipital protuberance, ligamentum nuchae, spinous processes of seventh cervical and all thoracic vertebrae | Origin of Trapezius |
| lateral third of clavicle, spine of scapula, acromion process | Insertion of Trapezius |
| accessory nerve, C3, C4 | Innervation of Trapezius |
| upper portion elevates scapula, middle portion retracts scapula, lower portion depresses scapula | Action of Trapezius |
| upper border of scapula, extends from tendon | Origin of inferior and superior Omohyoid muscles |
| body of hyoid bone | Insertion of Omohyoid muscles |
| ansa cervicalis (C1, C2, C3) | Innervation of Omohyoid muscles |
| depresses hyoid bone and larynx | Function of Omohyoid muscles |
| posterior surface of manubrium, medial end of clavicle | Origin of Sternohyoid muscle |
| body of hyoid bone | Insertion of Sternohyoid muscle |
| ansa cervicalis (C1, C2, C3) | Innervation of Sternohyoid muscle |
| depresses hyoid bone and larynx | Action of Sternohyoid muscle |
| posterior surface of manubrium | Origin of Sternothyroid muscle |
| oblique line on lamina of thyroid cartilage | Insertion of Sternothyroid muscle |
| ansa cervicalis (C1, C2, C3) | Innervation of Sternothyroid muscle |
| depresses larynx | Action of Sternothyroid muscle |
| oblique line on lamina of thyroid cartilage | Origin of Thyrohyoid muscle |
| body of hyoid bone | Insertion of Thyrohyoid muscle |
| C1 through hypoglossal nerve | Innervation of Thyrohyoid muscle |
| depresses hyoid bone | Action of Thyrohyoid muscle |
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